Metallic packing.



PA TENTED JUNE 26, 1906.

S. T. HIATT.

METALLIC PACKING.

APPLICATION FILED SEPT. 25. 1905.

0M 4 my STEPHEN T;

HrATnoF AKROIYI, oHIo.

METALLIQ PACKING. J

To aZZ .w7to m it may concern.-

Be it known that I, STEPHEN T. HIATT, a

a citizen of the United States, residing at Akron,

in the county of Summit and State of Ohio}- have invented certain new and useful Improvements in Metallic Packing; and I do hereby declare the following. to be a full,

clear, and exact description of the invention; such as will enable others skilled in the art to which it appertains to make and use the same.

' My invention relates to packing for, piston rods and the like; and its object is to provide a device of thischaracter having the portions thereof which contact with the rod formed of metal and so 'disposed in relation to each 7 other as to fit evenly upon the rod and pre- Another object is to provide sectional mevent the escape of steam, &c., through-the packing.

. extending therethrough.

With the above and other objects in view the invention consists of a metallic packingring formed of two oppositely-disposed contacting portions each of which is circular in form and is produced from a plurality of similar sections having flexible metallic connections. These ring members are of a peculiar contour and are covered by a soft-metal cap adapted to be pressed into the. interstices within the ring members so as to prevent individual rotatlon of said members. Filling rings of rubber or other suitable material are adapted to be seated within a stufiing-box and between the metallic rings and are so shaped and disposed in'relation to the rings as to cause the rings to clamp tightly about the iston-rod; or other object within the gland and form a tight contact therewith.

I The invention also consists of the further novel features of construction and combination of parts hereinafter more clearly s'et forth, and pointed out in the claims.

Specification of Letters Patent. Application filed September 25, 1905. Serial Noi 280,009-

the metallic or where several pac Patented June'26, 1906.

In the accompan g drawings I. have shown thepreferred fbi' m of my'invention. p In said drawings, Figure 1 is a longitudmal section through .a stufiing-box containing my improved packing. Fig. 2 is an endelevation of one of the improved packingerlngs with its cap remo ved. Fig. 3 is a sectlon on line a: m, Fig. 2. 4 is an edge. view of one of the rubber fillin -rings. Fig. 5 is asection therethrough, and ig. 6 is a section throu h cap of one of the metallic pac ing-rings.

Referring to the drawings by letters and nunierais of. reference, A and B are oppositely-disposed similar members constituting "my mproved metallic packing-ring. Each of these members is circular in form andis formed of a plurality of 'similar segments 1,

the ends of which are beveled, as shown at 2, so that V-shaped recesses 3 are produced be tween the adjoining ends of said segments.

The segments of the two members :A and B alternate, so that the recessesiiormed be,- tween the segmentsof members Aare' closed by the segments of :the members B. The

concave walls'of the segments 1 are straight from end to end, so as to lie fiat upon the'piston-rod 4 or other element adapted to be surrounded by the packing, and the contacting Walls of the segments are also flat, asshown at 5, so that a tight joint is produced thereby. The outer walls of the segments are convex, as shown at 6. The several segments of each member A and B are connected at their ends by soft-metal wires 7, the ends of which are seated in apertures adjacent the ends of the segments. These Wires extend across the ends of the recesses 3- and serve to hold the segments inproperrelation to one another. Soft-metalv caps 8 are adapted to be placed over the packing-rings, and the contour of each cap is similar to the contour of the ring surrounded thereb Each of these caps may be provided with a tapered flange 9, extending from one ed e thereof, if so desired, king-rings are employed only one of the caps may be provided with thisflange. j

The third element constituting my 1m roved packing is a filling-ring 10, adapted to be interposed between any two ad oining packing-rings. This filling-ring may be formed of felt, rubber, asbestos, or other desired material and has its faces concave, as

shown at 11, so as to receive the cap 8. The.

iro

- flat face against the inner wall thereof.

' secured tightly in place.

of the box is first removed, after which a split filling-ring 13 is opened and slipped over the rod 4 and .then inserted in the ox withOits ne of the soft-metal connecting-wires 7 of the member B is then cut and the segments con-' stituting said member are swung open, this movement being permitted because of the beveled ends of the segments. Said member B is then slipped around the rod 4 and member A is similarly cut and also placed upon the rod 4. The two members are then disposed in relation to each other so that their respective recesses 3 will not register, and a softmetal cap is then placed over the two members, and the entire packing-ring is then slipped into the box and into contact with the recessed. face of the filling-ring 13. A filling-ring 10 is then slipped upon the rod so that one of its concave faces will bear against the packing-rim and the above operation can be continue until the desired number of filling-rings have been placed within the box.

It is desirous that the cap 8 of the metallic packing-ring nearest the outer or inner end of the stuffing-box be provided with a flange 9, which contacts with the rod 4 and prevents solid particles from working along the rod and into the packing. After the parts have been thus assembled cap 15 is inserted and The filling-rings will be caused to clamp tightly upon the packing-rings and will force the soft-metal caps into the interstices within the members of the various aching-rings, and the segments will there ore be locked against individual rotation, and the two members of each rin will maintain their proper relation to eac other at all times and in spite of the rotation or oscillation of element 4. Moreover, as the outer faces of the metallic packing-rings are convex and fit within concavities in the filling-rings 10 and 13 it will be seen that said filling-rings 10 will press the metallic rings against the element 4, so .as to cause all portions of the bearing-surface of the metallic packing-rings to cohtact with the element 4. The metallic packing-rings are smaller in diameter than the interior of box 14, and therefore should the element 4 have an irregular movement in rotation, such as would be produced if the same were bent or slightly off center, these metallic rings are permitted to move laterally within the stuffing-box with the element 4, such movement being permitted because of the elastic fillingrings which are utilized.

By beveling the ends of the segments 1 it is impossible for the segments to wear away to such a degree as to cause said ends to come in contact and prevent the segments from clamping upon the element 4. Moreover, the pressure of the filling-rings upon said beveled ends will tend to force the ends in against the element 4, and further insure a smooth bearing between said element and thrilpacking ings.

aving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A segmental, metallic packing-ring, the

. segments of said ring being connected by separate flexible devices.

2. A metallic packing-ring formed of segments having beveled ends and separate flexible connections between the se ments.

3. A metallic packing-ring ormed of segmentshaving beveled ends, and soft-metal connecting devices permanently secured to and connecting the ends of the segments.

4. A metallic packing-ring formed of oppositely-disposed, similar contacting members, each member being formed of segments having their ends spaced apart, andflexible connections between said segments.

5. A metallic packing-ring formed-of oppositelydisposed, similar contacting members, each member being formed of segments having their ends spaced apart, flexible connec-. tions between said segments, and means for holding the segment ends of one member out of register with the segment ends of the other member.

6. A metallic packing-ring formed of 0 p0 sitely-disposed, similar contacting mem ers, each member being formed of segments having their ends spaced apart, flexible connections between said segments and a metallic cap surrounding the members and holding them in contact.

7. A metallic packing-ring formed of oppositely-disposed, similar contacting members, each member being formed of segments having their ends spaced apart, flexible connections between said segments, and a soft- 9. The herein-described packing comprising a metallic ring formed of oppositely-disosed, similar members having convex outer aces, each member formed of a plurality of similar segments having beveled ends, and a "soft-metal connection between the segments,-

10. The combination with a stufling-box having a movable element therein, of-flexible filling-rings seated Within the box and surrounding the element, said n'ngs'having their faces concaved, and a metallic packing-ring seated within the concavities and surrounding the element, said ring comprising oppositely-disposed, similar contacting members having convex outer faces, each member comprising similar segments having beveled ends spaced apart, soft-metal connecting devices permanently secured to the ends of the adjoining segments, and a soft-metal cap surrounding and fitting snugly upon the metallic packing-rings, said cap being seated within the cavities in the filling-rings.

11. The combination with a stuffing-box having a movable element therein, of flexible filling-rings seated within the box and surrounding the element, said rings having their faces concaved, a metallic packing-ring seated within the concavities and surrounding the element, said ring comprising oppositely-disposed, similar contacting members having convex o'uter faces, each member comprising similar segments having beveled ends spaced apart, soft-metal connecting devices permanently secured to the ends of adjoining segments, a soft-metal cap surrounding and fitting snugly upon the metallic packing-rings, said cap being seated within the cavities in the filling-rings, a cap projecting into the box, and means for forcing said cap into the box for compressing the filling-rings.

In testimony whereof I have signed m name to this specification in the presence of 'two subscribing witnesses.

STEPHEN TIHIATT. Witnesses: e

E. W. STUART, F. H. STUART. 

